Garbage collection telemetry

"Garbage Collection" telemetry will help you estimate garbage collector load.
If garbage collection takes a significant amount of time, it is advised to
profile memory allocation to pin-point and optimize the problematic code.

You can explicitly run garbage collection using "Force Garbage Collection" toolbar button:

The shown number and shallow sizes correspond to the objects that were created and recycled
since the allocation recording was started and prior to the moment of the
snapshot capture.
(See also Memory snapshot, section "Inaccessible objects are treated as if they were already collected").

Call tree

Shows a top-down call tree with methods in which collected objects were created,
for each particular thread ("by thread")